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| author |   Ingo Schwarze <schwarze@openbsd.org> | 2022-06-08 13:23:57 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@openbsd.org> | 2022-06-08 13:23:57 +0000 |
| commit | 88d09deb893505c936316537673cfbf30be47558 (patch) | |
| tree | 9be83d537e7c6258d68b8336e0e6adff57959bab /regress/roff/esc/o.in | |
| parent | 0e5b172a930a9f03c2f2175cbdd843fa54782a89 (diff) | |
| download | mandoc-88d09deb893505c936316537673cfbf30be47558.tar.gz mandoc-88d09deb893505c936316537673cfbf30be47558.tar.zst mandoc-88d09deb893505c936316537673cfbf30be47558.zip | |
Surprisingly, every escape sequence can also be used as an argument
delimiter for an outer escape sequence, in which case the delimiting
escape sequence retains its syntax but usually ignores its argument
and loses its inherent effect. Add rudimentary support for this
syntax quirk in order to improve parsing compatibility with groff.
Diffstat (limited to 'regress/roff/esc/o.in')
| -rw-r--r-- | regress/roff/esc/o.in | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/regress/roff/esc/o.in b/regress/roff/esc/o.in index 1f9f5039..aa0ba657 100644 --- a/regress/roff/esc/o.in +++ b/regress/roff/esc/o.in @@ -1,5 +1,5 @@ -.\" $OpenBSD: o.in,v 1.2 2017/07/04 14:53:27 schwarze Exp $ -.Dd $Mdocdate: July 4 2017 $ +.\" $OpenBSD: o.in,v 1.3 2022/06/08 13:08:00 schwarze Exp $ +.Dd $Mdocdate: June 8 2022 $ .Dt ESC-O 1 .Os .Sh NAME @@ -17,3 +17,39 @@ narrow/wide: x\o'|O'x wide/narrow/narrow: x\o'O-|'x .br narrow/narrow/wide: x\o'|-O'x +.Ss Argument delimiters +unsupported \er: \o\rxy\ru +.br +ignored \e&: \o\&xy\&u +.br +useless \e.: \o\.xy.u +.br +invalid \eG: \o\GxyGu +.br +special \e-: \o\-xy\-u +.br +break \ep: \o\pxy\pu +.br +nospace \ec: \o\cxy\cu +.\".br +.\"XXX skipchar \ec: \o\zxy\zu +.br +.ds mystr zx +string expansion: \o\*[mystr]yzu +.br +.nr myreg 12 +register expansion: \o\n[myreg]31u +.br +ignored \eON: \o\O1xy\O2u +.br +special character: \o\(hyxy\(hyu +.br +ignored \eZ\(aqstr\(aq: \o\Z'foo'xy\Z'bar'u +.br +horizontal motion: \o\h'1'xy\h'3'u +.br +horizontal line: \o\l'4'xy\l'2'u +.br +overstrike: \o\o'ab'xy\o'cd'u +.br +unterminated: \o'xy |